Flash chromatography cartridge
AssigneeScientific Plastic Products, Inc.
InventorsSamuel A. Ellis, Jeffrey L. Harlan
Life of this patent
Estimating the term…
Abstract
A low pressure liquid chromatographic cartridge is provided having a tubular polymer container adapted to receive a chromatographic packing material. The container has an outlet port located at a downstream end of the container and container threads formed on an upstream end of the container. A polymer cap having cap threads located on the cap threadingly engage the container threads. An inlet port is located on an upstream end of the cap. A resilient fluid tight seal is interposed between the polymer cap and container suitable for use in low pressure liquid chromatography. A locking tab on a skirt of the cap engages a recess on the container when the seal engages the cap and container to lock the cap in position relative to the container.
Claims22
A method for a user to perform low pressure liquid chromatography, comprising:
- placing at least one of a material to be analyzed or a chromatographic packing material in a tubular polymer container having an outlet port located at a downstream end of the container and configured for use with chromatographic equipment, the container having container threads formed on an upstream end of the container;
- threadingly engaging threads on a polymer cap with the container threads, the cap having an inlet port on an upstream end of the cap;
- and
- sealing the cap to the container by tightening the threads and engaging a seal between the cap and the container, the seal providing a fluid tight seal below about 100 psi suitable for LPLC use, wherein the sealing step comprises abutting first and second oppositely inclined surfaces on the cap with first and second oppositely inclined surfaces on opposing sides of a lip of the container, the abutting surfaces being generally aligned.
A method for a user to perform low pressure liquid chromatography, comprising:
- providing a polymer cap and a tubular polymer container having an outlet port located at a downstream end of the container and configured for use with chromatographic equipment, the cap having an inlet port on an upstream end of the cap and the container having container mating threads formed on an upstream end of the container, the container having a chromatographic packing material therein;
- placing at least one of a material to be analyzed or a sample to be analyzed in the container while the cap is off;
- threadingly engaging threads on the polymer cap with the container threads;
- and
- sealing the cap to the container by tightening the threads and engaging a seal between the cap and the container, the seal providing a fluid tight seal suitable for LPLC use.
Dependencies are inferred from the claim text.